Professor Sridhar's principal areas of research are Nanomaterials and
Nanomedicine and Left-Handed Metamaterials. Nanomaterials and Nanomedicine: Prof. Sridhar
is Director of the Electronic Materials Research Institute, an interdisciplinary
institute formed to catalyze and synergize the University's research in
nanomaterials. He also directs the Nanomedicine consortium, a collaboration between
faculty from several departments and area medical research hospitals researching
applications of nanotechnology to medical problems including diagnosis and therapy of
cancer, infectious and cardiovascular diseases. Ongoing projects include functionalized
nanoparticles, energy, drug and gene delivery using nanoparticles, electromagnetic
hyperthermia, and magnetic nanoparticles as MRI contrast agents. Prof. Sridhar is the
director of the IGERT Nanomedicine Science and Technology program (see
www.igert.neu.edu). Left-Handed Metamaterials: Artificial materials with negative
refractive index are called left handed materials because of the unusual electromagnetic
wave propagation in them. We have several significant results on negative refraction and
imaging. Our paper in Nature (2003) on flat lens imaging was cited as one of the
Breakthroughs of 2003 by Science, and by Physics News 2003 by the American Physical
Society. Our work has received extensive attention in the scientific community as well as
the online and print popular press. 

Articles

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Super-resolution imaging using a three-dimensional metamaterials nanolens (with B. D. F. Casse, W. T. Lu, Y. J. Huang, E. Gultepe, and L. Menon), Physics Faculty Publications (2010)

Super-resolution imaging beyond Abbe's diffraction limit can be achieved by utilizing an optical medium or...

 

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Negative index metamaterials based on metal-dielectric nanocomposites for imaging applications (with L. Menon, W. T. Lu, A. L. Friedman, S. P. Bennett, and D. Heiman), Physics Faculty Publications (2008)

Negative index metamaterials are demonstrated based on metal-dielectric nanocomposites prepared using a versatile bottom-up nanofabrication...

 

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Nanoengineering of a negative-index binary-staircase lens for the optics regime (with B. D. F. Casse, R. K. Banyal, W. T. Lu, Y. J. Huang, S. Selvarasah, and Mehmet R. Dokmeci), Center for High-Rate Nanomanufacturing Publications (2008)

We show that a binary-staircase optical element can be engineered to exhibit an effective negative...

 

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High-throughput assembly of nanoelements in nanoporous alumina templates (with Evin Gultepe, Dattatri K. Nagesha, Latika Menon, and Ahmed A. Busnaina), Center for High-Rate Nanomanufacturing Publications (2007)

The authors demonstrate a nanofabrication method utilizing nanoporous alumina templates which involves directed three dimensional...

 

Unpublished Papers

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Correlations among the Riemann zeros: Invariance, resurgence, prophecy and self-duality (with W. T. Lu), Physics Faculty Publications (2004)

We present a conjecture describing new long range correlations among the Riemann zeros leading to...

 

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Anomalous scattering rate and microwave absorption in Bi₂Sr₂CaCu₂O₈₊δ and Y Ba₂Cu₃O₇₋δ (with C. Kusko, Z. Zhai, and R. S. Markiewicz), Physics Faculty Publications (2001)

We determine the scattering rate from microwave measurements for an optimally doped Bi-2212 single crystal,...

 

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Dielectric signatures of lattice instabilities at 32K and 245K in $La_{2-y}Sr_{y}MO_{4+x}$ (M=Cu,Ni) Cuprates and Nickelates (with P. V. Parimi, N. Hakim, F. C. Chou, and S. W. Cheong), Physics Faculty Publications (2001)

New dielectric transitions are observed at common temperatures 32K and 245K, in isostructural $La_{2}CuO_{4+x}$ and...

 

Preprints

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A new mechanism for negative refraction and focusing using selective diffraction from surface corrugation (with W. T. Lu, Y. J. Huang, P. Vodo, R. K. Banyal, and C. H. Perry), Physics Faculty Publications (2007)

Refraction at a smooth interface is accompanied by momentum transfer normal to the interface. We...

 

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Alternative approach to all-angle negative refraction in two-dimensional photonic crystals (with Y. J. Huang and W. T. Lu), Physics Faculty Publications (2007)

We show that with an appropriate surface modification, a slab of photonic crystal can be...

 

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Correlations due to localization in quantum eigenfunctions of disordered microwave cavities (with Prabhakar Pradhan), Physics Faculty Publications (2000)

Non-universal correlations due to localization are observed in statistical properties of experimental eigenfunctions of quantum...

 

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Comment on "Vortex glass and lattice melting transitions in a YNi₂B₂C single crystal" (with S. Oxx, Balam A. Willemsen, H. Srikanth, and D. P. Choudhury), Physics Faculty Publications (1996)